General description The 18 Pieces EMF Protection Cell Phone Sticker is designed to significantly reduce electromagnetic radiation exposure from electronic devices. This anti-radiation shield sticker decreases radiation exposure by up to 99%, absorbing and neutralizing the harmful effects of EMF/EMR radiation. It provides comprehensive protection for your body against common electronic radiation, including Bluetooth and Wi-Fi. Technical specifications Color: Golden Material: Metal Size: 21 x 29 mm Package Contents: 18 x Patches Measurement allowed error: +/- 1-3 cm Usage Easy to apply: Simply stick the EMR stickers on the back of cell phones and other electronic devices. Widely used: Suitable for tablet PCs, mobile phones, computers, air conditioners, refrigerators, microwave ovens, printers, washing machines, and more. Converts radiation into harmless forms without blocking signals. Other information The anti-radiation sticker is composed of an anti-radiation film and a negative ion